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  1. IMPALA
  2. IMPALA-3923

BufferedTupleStream::GetRows() can overflow 32-bit int

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Details

    • Bug
    • Status: Resolved
    • Critical
    • Resolution: Fixed
    • Impala 2.7.0
    • Impala 2.7.0
    • Backend

    Description

      GetRows() tries to read an entire stream into a RowBatch. The stream num_rows is a 64-bit int but the RowBatch num_rows is a 32-bit int. If GetRows() is called with num_rows > INT_MAX the likely result is a crash

      The GetRows() API has other flaws (IMPALA-2758) but it would be good to avoid this particular crash.

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            tarmstrong Tim Armstrong
            tarmstrong Tim Armstrong
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